Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4792389 | Process to produce light products and fuel oils for conventional use from heavy metal- and sulfur-rich crude oil residues | Werner Frohn, Hermann Franke, Werner Zimmermann, Heinz Limmer, Eberhard H/o/ pfner +6 more | 1988-12-20 |